Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BLUE ROCKET MMBT4401
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BLUE ROCKET MMBT4401
- Type
- BLUE ROCKET
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BLUE ROCKET
- Electronic Component
- MMBT4401
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- 1 NPN
- Electronic Component
- Transistor(BJT)
- Electronic Component
- 0.03g
- Electronic Component
- 1
- Electronic Component
- BM0226538770
- Transistor Type
- NPN
- Frequency(f T)
- 250MHz
- Power Dissipation(Pd)
- 350mW
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- Collector Current(Ic)
- 600mA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
MMBT4401 产品概述
一、概述
MMBT4401 为 BLUE ROCKET 系列通用小信号 NPN 晶体管，SOT-23-3 封装，适用于开关和低功率放大场合。器件强调高增益与较宽带宽，典型参数包括：直流电流增益 hFE = 300（在 Ic=150mA，VCE≈1.0V 条件下）、特征频率 fT ≈ 250MHz、最大集电极电流 Ic = 600mA，适合对增益和响应速度有要求的电路。
二、主要电气参数
- 集射极击穿电压 VCEo：40V（注意选型时参照数据手册具体等级）
- 集电极截止电流 Icbo：50nA（典型，低泄漏）
- 发射-基极击穿电压 VEbo：6V
- 集电极-射极饱和电压 VCE(sat)：约 750mV（在 500mA 与 50mA 条件下测）
- 最大耗散功率 Pd：350mW（SOT-23 封装，热阻限制需注意）
三、特性与优势
- 高直流增益：在中等电流范围内表现出较高 hFE，便于减小基极驱动功率。
- 宽带宽：fT≈250MHz，适合高速开关与射频前端的某些应用。
- 小封装：SOT-23 体积小、适合表贴生产，利于空间受限的设计。
- 低漏电流：Icbo 低，有利于高阻输入和低功耗待机电路稳定性。
四、典型应用场景
- 通用开关与驱动（低电流继电器驱动、LED 驱动）
- 小信号放大器（前置放大、信号调理）
- 阵列开关、缓冲器、逻辑接口电平移位
- 高频或宽带响应要求的电路段（注意功耗与热设计）
五、布局与使用建议
- SOT-23 封装热阻较大，连续靠近最大 Ic 或高 Pd 时需在 PCB 上加大散热铜箔或使用热沉。
- 高速应用中应注意走线寄生电容与基极旁路，必要时并联基极小电阻或 RC 抑制尖峰。
- 引脚常见排列为：1=E、2=C、3=B（不同厂商略有差异，请以器件出厂标识与封装图为准）。
- 若需在高电流、大电压边界工作，推荐参考完整数据手册并进行实际温升与 SOA 验证。
六、封装与订货信息
- 品牌：BLUE ROCKET
- 封装：SOT-23-3，单只 NPN（数量按需订购）
- 适配替代：在电参数允许的范围内可与其他通用 NPN 小信号晶体管互换，但需核对 VCE、Ic、Pd 与引脚对应。
如需我帮您根据具体电路（电压、电流、开关频率）做更精确的选型、热设计或示例电路，请提供工作条件与拓扑要求，我可以给出更具体的建议。
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